Home / 12,107.87-18,158.56-3,343.26

Finding the Fourth Proportional to 12,107.87, 18,158.56 and 3,343.26

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Solution

The fourth proportional to 12,107.87, 18,158.56 and 3,343.26 is: 5,013.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,107.87 : 18,158.56 = 3,343.26 : x
  2. Step 2: Convert to fraction form
    12,107.87/18,158.56 = 3,343.26/x
  3. Step 3: Cross multiply
    12,107.87x = 18,158.56 × 3,343.26
  4. Step 4: Simplify right side
    12,107.87x = 60,708,787.31
  5. Step 5: Solve for x
    x = 60,708,787.31/12,107.87
  6. Step 6: Final answer
    x = 5,013.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.